In my humble opinion, poly is junk for high-demand, high-activity bushings. Go OE/OEM design such as Meyle HD for both FCABs and RTABs. You can also do Lemforder RTABs. Easy in easy out with correct tools. No maintenance needed and you don't have to be under your car looking for creaks and squeaks. The bones in your wrist also won't rattle out.